Georg Donatus, Hereditary Grand Duke of Hesse (Georg Donatus Wilhelm Nikolaus Eduard Heinrich Karl, 8 November 1906 – 16 November 1937) was the first child of Ernest Louis, Grand Duke of Hesse, and his second wife, Princess Eleonore of Solms-Hohensolms-Lich.

On 16 November 1937, Georg Donatus, Cecilie, their two young sons, Georg's mother Grand Duchess Eleonore, the children's nurse, a family friend, a pilot and two crewmen, flew from Darmstadt bound for the United Kingdom, where Prince Louis was due to be married.

The Junkers Ju 52 aeroplane hit a factory chimney near Ostend and crashed into flames, killing all those on board.

Cecilie was heavily pregnant with her fourth child at the time of the crash, and the remains of the newborn baby were found in the wreckage, indicating that Cecilie had gone into labour during the flight; the Belgian inquiry into the crash suggested that the pilot was attempting to land in Ostend despite the poor weather conditions because of the birth.

[7] Prince Louis' wedding had been scheduled for the 20th but, following discussions with his future father-in-law Lord Geddes, was brought forward to the day following the accident (17 November), as a small and quiet ceremony with the guests dressed in mourning.